Review on Enhance Your Ride with the BOSS Audio MC420B Motorcycle Speaker System: Class D Amplifier, Weatherproof 3 Inch Speakers, Ideal for ATVs, Motorcycles & 12 Volt Vehicles by Anil Campbell

I have had this speaker system for 3 months now and I really like it. Installation was fairly easy, but the clamps/rubbers you get to attach the speakers to the handlebars aren't the best. I used a different rubber and it worked fine. Bluetooth is good but the range is only about 5-10 feet. So if you're looking for longer range, you might want to consider a different system. I only use it with my phone when I'm on my bike so it's fine with me. The system is loud enough, even at 80 mph. When they say the speakers are weatherproof, they're not kidding. I have ridden/standing the bike in decent rain and it has performed flawlessly. Not sure about the amp's weather resistance since it's installed in the toolbox, but it looks like it could be reliable. All in all, this is a great system.